We can gain valuable wisdom from mistakes which ______ to prevent them from happening again.
A. should be avoided B. might be avoided
C. must have been avoided D. could have been avoided
Many netizens are impressed with the excuse given by a teacher for quitting her job ______ she owes the world a visit.
A. because B. that C. where D. why
The project is far behind schedule. It’s impossible for you to ______ it in a week.
A. catch up on B. live up to
C. add up to D. hold on to
—Simon will listen to music every time he comes across a maths problem.
—You know, music is the source of ______ in life.
A. inspiration B. identification
C. reaction D. recreation
Ever since the new park was opened to the public last month, I ______ a walk in it every morning.
A. am taking B. take
C. have taken D. have been taking
Faced with economic slowdown, some companies are planning to use robots to ______ human workers to reduce their labor costs.
A. compensate B. substitute
C. symbolize D. discriminate
